// 设置常见的屏幕尺寸，修改里面的html文字大小
// 750px pc端的html
html {
    font-size: 50px;
}

// 我们此次定义的划分的份数为15
@num:15;
// 320
@media screen and(min-width:320px) {
    html {
        font-size: (320px/@num);
    }
}
// 360
@media screen and (min-width:360px) {
    html {
    font-size: (360px/@num);}
}
// 375 iphon678
@media screen and (min-width:375) {
    html {
        font-size: (375px/@num);
    }
}

// 384
@media screen and (min-width:384px) {
    html {
    font-size: (384px/@num);}
}
// 400
@media screen and (min-width:400px) {
    html {
    font-size: (400px/@num);}
}
// 414
@media screen and (min-width:414px) {
    html {
    font-size: (414px/@num);}
}
// 424
@media screen and (min-width:424px) {
    html {
    font-size: (424px/@num);}
}
// 480
@media screen and (min-width:480px) {
    html {
    font-size: (540px/@num);}
}
// 720
@media screen and (min-width:720px) {
    html {
    font-size: (720px/@num);}
}
// 750
@media screen and (min-width:750px) {
    html {
    font-size: (750px/@num);}
}